Stone crusher



Sept. 26, 1939. G. A. BlLocQ STONE cRUsHER Fild lay 28, 11957 2 sneets-sh'eet 1 Sept. 26, 1939.

G. A. BlLocQ STONE CRUSHER Fixed lay 28, lev

2 Sheets-Sheet 2 ml'lcl Patented Sept. 26, 1939 2,174,116 STONE CRUSHER Georges A. Bilocq,

assignor to The Plessisville, Quebec, Canada, Plessisville Foundry Limited,

Plessisville, Quebec, Canada. Application May 28, 1937, Serial No. 145,206

8 Claims.

uniform crushing of the stone with less refuse and a better efiiciency in crushing operatons.

attain these obj ec ts by the mechanism illus- I trated in the accompanying drawings in which:

Figure 1 is a Figure 2 is chine.

plan of the machine.

a longitudinal section of the ma- Figure 3 is a section on line AA on Figure 1 to Show in detail the rotation of the osciliating Figure 4 is a side ele device to secure a positive drum. vation of said device.

Similar numbers refer to similar parts through- Out the several views.

The drum I rotates freely around 8. These shafts 3 and 1 9 through sprocket Wheels The drum 6 is 1 turnmg in the bearings are dn'ven by a chain l or by a convenient gearing. The chain is driven through a speedreducing gear ll by the 13 properly counterpoi centricity of the drum I sliding of the bearings by a spring I 1 again grooves IB cut in the side of the drum l.

18 are long enough gIOOVeS pulley 12. Fly Wheels counterbalance the ec- Springs |4 permit the allow the passage besed ratchet-like series of Those to permit the pawl sta [ to keep engaged during the complete oscillation of the drum I.

In the several view regulate the distance |9 is a bolt provided to between the two drums through the sliding motion of bearing boxes 4; 20 is a plate which reinforces the bearing boxes of the machine; 2| is the Stones are fed; this a hopper through which hopper 2| is not shown on the plan for the sake of simplicity.

The stone is fed th the drums I and 5; t uously and regularly.

rough the hopper between he drum 6 rotates contin- The drum l rotates freely around the eccentric part 2 and When no stones are fed will by friction follow It is in order to prevent this occurrence, which lowers the efiiciency of the machine, that I provide the positive action of the drum l.

an osciilating drum has been employed and I therefore do not claim these features; but

Iclaim: 1. In a stone crusher, the combination of a rotation. thereof, and means connected to both driv'ing each shaft.

permitting movement of the from the first-named shaft, a rotary crushing roll xed to and rotating with the first named shaft, an eccentric on the second-named shaft, a drum surrounding the eccentric and rotatable in fricshaft and driving the second-named shaft at a greater speed than the first-named shaft.

3. In a stone crusher, the combination of a fixed to and rotating With the 2` frame, a pair of parallel shafts, one rotating in fixed bearings and the other in slidable bearings permitting movement of the same toward and from the first-named shaft, a rotary crushing roll ,fixed to and rotating With the first-named shaft,

the crushing of stone fed therebetween, means for permitting oscillation of the drum about the eccentric and limiting the backward rotation thereof, said means comprising a pawl on theframe and ratchet teeth extending radially on the drum and elongated in the radial direction for engagement of the pawl With any position of the drum in its rotations with respect to the roll, and means connected to both shafts for directly driving each shaft.

4. In a stone crusher, the combination of a frame, a pair of parallel shafts, one rotating in fixed bearings and the other in slidable bearings permitting movement of the same toward and from the first-named shaft, a rotary crushing roll fixed to and rotating With the first-named shaft, an eccentric on the second-named shaft, a drum surrounding the eccentric and rotatable in frictional engagement With and also oscillatable about said eccentric, said drum and roll having peripheral surfaces in coacting relationship for the crushing of stone fed therebetween, means for permitting oscillation of the drum about the eccentric and limiting the backward rotation thereof, sprookets fixed to the shafts, and an endless chain for directly driving said gears, the gear on the drum shaft being relatively smaller than that on the roll shaft for driving said drum shaft at a higher rate of speed than the roll shaft.

5. In a stone crusher, the combination of a frame, a pair of parallel shafts, `one rotating in fixed bearings and the other in slidable bearings permitting movement of the same toward and from the first-named shaft, a rotary crushing roll first-named shaft, an eccentric on the second-named shaft, a drum surrounding the eccentric and rotatable frictionally in engagement with and also oscillatable about said eccentric, said drum and roll having '3 peripheral surfaces in coacting relationship for the orushing of stone fed therebetween, means for permitting oscillation of the drum about the eccentric and limiting the backward rotation thereof, sliding bearings in which the drum shaft is mounted for movement of said shaft and drum forward and rearward toward and from the roll shaft and roll, Springs acting on said bearings for normalhT moving the drum and drum shaft to- Ward the roll and roll shaft and yieldingly resisting reverse movement thereof, adjustable means for variably limiting the movement of the drum and drum shaft in the first-named direction, and means connected to both shafts for directly driving each shaft.

6. In a stone crusher, the combination of a frame, a pair of parallel shafts, one rotating in fixed bearings and the other in slidable bearings permitting movement of the same toward and from the first-named shaft, a rotary crushing roll fixed to and rotating With the first-named shaft, an eccentric on the second-named shaft, a drum surrounding the eccentric and rotatable in frictional engagement with and also oscillatable about said eccentric, said drum and roll having peripheral surfaces in coaoting relationship for the fed therebetween, means for eccentric and thereof, said means comprising a pawl on the frame and ratchet teeth extending radially on the drum and elongated in the radial direction for engagement of the pawl in any position of the drum in its rotations with respect to the roll, and means connected to both shafts for directly driving each shaft.

7. In a stone crusher, the combination of a frame, a pair of parallel shafts, one rotating in stationary bearings and the other in bearings slidable toward and from the first-named shaft, a rotary crushing roll fixed to and rotating with the first named shaft, an eccentric on the secondnamed shaft, a drum surrounding the eccentric and rotatable in frictional engagement with and also oscillatable about said eccentric, said drum and roll having peripheral surfaces in coacting relationship for the crushing of stone fed therebetween, means for permitting oscillation of the drum about the eccentric and limiting the backward rotation thereof, said means comprising a pawl on the frame and ratchet teeth extending radially on the drum and elongated in the radial direction for engagement of the pawl in any position of the drum in its rotations with respect to the roll, and gearing for directly driving each shaft and driving the second-named shaft at a greater speed than the first-named shaft.

8. In a stone crusher, the combination of a frame, a pair of parallel shafts, one rotating in fixed bearings and the other rotating in bearings slidable toward and from said fixed bearings, av

rotary crushing roll fixed to and rotating with the first-named shaft, an annular eccentric sleeve on the second-named shaft, a drum surrounding said eccentric sleeve and having its inner periphery in frictional engagement therewith, said drum being both rotatable and oscillatable about said eccentric sleeve, and said drum and roll being provided With peripheral surfaces in coacting relationship for the crushing of stone fed therebetween, means for permitting oscillation of the drum about the eccentric sleeve and limiting the backward rotationthereof, said means comprising a pawl on the frame and ratchet teeth extending radially on the drum and elongated in the radial direction for engagement of the pawl in any position of the drum in its rotations and oscillations with respect to the roll, and gearing for directly driving each shaft and driving the drum shaft at a greater speed than the roll shaft.

GEO. A. BILOCQ. 

